PYSEC-2026-2846 OpenEXR's CompositeDeepScanLine integer-overflow leads to heap OOB write

Summary Function: CompositeDeepScanLine::readPixels, reachable from high-level multipart deep read flows MultiPartInputFile + DeepScanLineInputPart + CompositeDeepScanLine. Vulnerable lines src/lib/OpenEXR/ImfCompositeDeepScanLine.cpp: - totalsizesptr += countsjptr; line 511 - overallsamplecount ...

OpenEXR's CompositeDeepScanLine integer-overflow leads to heap OOB write

SummaryFunction: CompositeDeepScanLine::readPixels, reachable from high-level multipart deep read flows MultiPartInputFile + DeepScanLineInputPart + CompositeDeepScanLine.Vulnerable lines src/lib/OpenEXR/ImfCompositeDeepScanLine.cpp:- totalsizesptr += countsjptr; line 511- overallsamplecount +=...

RHSA-2026:38499 Red Hat Security Advisory: openexr security update

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Important: Red Hat Security Advisory: openexr security update

An update for openexr is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

OpenEXR: OpenEXR: Information disclosure and denial of service via malformed EXR files

A flaw was found in OpenEXR. A remote attacker could exploit a vulnerability in the IDManifest::init function when processing specially crafted EXR files. The function attempts to reconstruct strings from a prefix-compressed representation. If a previous string exceeds 255 bytes, the subsequent...

OpenEXR: OpenEXR: Arbitrary code execution via integer overflow in image resizing

A flaw was found in OpenEXR, an image storage format library for the motion picture industry. An integer overflow vulnerability exists in the ImageChannel::resize function, which can be triggered when processing a specially crafted OpenEXR image file through the OpenEXRUtil public API. This can...

Important: Red Hat Security Advisory: openexr security update

An update for openexr is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...

OpenEXR: OpenEXR: Information disclosure and denial of service via malformed EXR files

A flaw was found in OpenEXR. A remote attacker could exploit a vulnerability in the IDManifest::init function when processing specially crafted EXR files. The function attempts to reconstruct strings from a prefix-compressed representation. If a previous string exceeds 255 bytes, the subsequent...

OpenEXR: OpenEXR: Arbitrary code execution via integer overflow in image resizing

A flaw was found in OpenEXR, an image storage format library for the motion picture industry. An integer overflow vulnerability exists in the ImageChannel::resize function, which can be triggered when processing a specially crafted OpenEXR image file through the OpenEXRUtil public API. This can...

openexr security update

3.1.1-3.3 - fix CVE-2026-41142 - fix CVE-2026-42216...

RHEL 10 : openexr (RHSA-2026:38499)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:38499 advisory. OpenEXR is an open-source high-dynamic-range floating-point image file format for high-quality image processing and storage. This document...

RHEL 9 : openexr (RHSA-2026:39025)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:39025 advisory. OpenEXR is an open-source high-dynamic-range floating-point image file format for high-quality image processing and storage. This document...

PT-2026-59481

Summary While fuzzing openexr exrcheck fuzzer, Valgrind reports a conditional branch depending on uninitialized data inside generic unpack. This indicates a use of uninitialized memory CWE-457. The issue is reproducible with the current OSS-Fuzz harness and a single-file PoC. Details Environment:...

PT-2026-59482

Summary There is a use-after-free in PyObject StealAttrString of pyOpenEXR old.cpp. This bug was found with ZeroPath. Details The legacy adapter defines PyObject StealAttrString that calls PyObject GetAttrString to obtain a new reference, immediately decrefs it, and returns the pointer. Callers...

ALSA-2026:38498 Important: openexr security update

OpenEXR is an open-source high-dynamic-range floating-point image file format for high-quality image processing and storage. This document presents a brief overview of OpenEXR and explains concepts that are specific to this format. This package containes the binaries for OpenEXR. Security Fixes:...

RHEL 9 : openexr (RHSA-2026:39027)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:39027 advisory. OpenEXR is an open-source high-dynamic-range floating-point image file format for high-quality image processing and storage. This document...

RHEL 9 : openexr (RHSA-2026:39026)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:39026 advisory. OpenEXR is an open-source high-dynamic-range floating-point image file format for high-quality image processing and storage. This document...

ALSA-2026:38499 Important: openexr security update

OpenEXR is an open-source high-dynamic-range floating-point image file format for high-quality image processing and storage. This document presents a brief overview of OpenEXR and explains concepts that are specific to this format. This package containes the binaries for OpenEXR. Security Fixes:...

Oracle Linux 9 : openexr (ELSA-2026-38498)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-38498 advisory. - fix CVE-2026-41142 Tenable has extracted the preceding description block directly from the Oracle Linux security advisory. Note that Nessus has not...

PT-2026-59488

Summary The PXR24 decompression function undo pxr24 impl in OpenEXR internal pxr24.c ignores the actual decompressed size outSize returned by exr uncompress buffer and instead reads from the scratch buffer based solely on the expected size uncompressed size derived from the header metadata...